Brodhead Pietenpol Association

Original Posted By: Franck
Subject: Re: Pietenpol-List:electronic ignitionPieters: I am working with a 75 cont series 9 and cannot use a mag with a impulse and wonder if electric ignition might be my answer. Does anyone knowa good information about this development. Ken Conrad, Long Grove, Iowa________________________________________________________________________________Date: Thu, 27 Nov 2003 10:37:32 -0600

Original Posted By:
Curious. What is the reason that you can't use a mag with an impulse?Distance to firewall? The Slick 4330 is only 7 19/32" OAL, 5 11/16 behindthe mounting flange and is listed as approved for the A-75 in my SlickMaster Service Manual. You do have to replace the drive gears and use thecorrect spacer according to SL1-93. The spacer extends the mag from .79 to1.04 inches. (add to the 5 11/16")Cy Galley, TC - Chair, Emergency Aircraft Repair, OshkoshEditor, EAA Safety Programscgalley(at)qcbc.org or experimenter(at)eaa.orgAlways looking for articles for the Experimenter----- Original Message -----

Original Posted By: "Franck"
If you have been to Oshkosh, you might have noticed the "Hangar Cafe" It wasbuilt to weigh ultralites. The EAA has never placed itself as an enforcerso I think it was quickly dropped. We prefer to educate not police.Doing a W&B on a non-standard plane cannot be done outdoors quickly. Theplane must be in flight attitude with no-wind, which means inside. All gasmust be emptied out which can be a real fire hazard. The liability ofdefueling with all the by standers is enough to make the weighingimpossible.We tried it at the North-Central Flyin at Rock Fall, IL but all of the aboveproblems occurred. The doubling of bath scales was done but outside whichliterally tells you very little if there is any wind. My Chapter has set ofelectronic scales but even keeping them calibrated and in good working orderis very expensive. The load cells have a limit and if exceeded breaks them.Cy Galley, TC - Chair, Emergency Aircraft Repair, OshkoshEditor, EAA Safety Programscgalley(at)qcbc.org or experimenter(at)eaa.orgAlways looking for articles for the Experimenter----- Original Message -----

Original Posted By:
Ken...I'm just wondering, why don't you want a magneto with an impulse coupler??RonTurlock, Cal----- Original Message -----

Original Posted By: Matt Dralle

Original Posted By: "Cy Galley"
Cy,The -9 case is special in that the mags need to reach way inside to mate upwith the drive gear.You have probably seen A series mag gears that look like a cone that do thisreaching....They show them in the picture in my 2-15-48 A-series manual with the browncover. Page 61, Figure 33, item 151.ChrisChris----- Original Message -----

Original Posted By: "Alex Sloan"
Subject: Re: Pietenpol-List:electronic ignitionRon, and PietersI am the guy interested in electronic ignition. I am using a cont 75 engine series 9 which has a thick back plate and the mags drive off the crank gear which means they run the opposite from most mags and the impulse must be the other direction. Also the spacing from the gear teeth to mounting surface isdifferent than all other conts. So you ask; why are you using this engine? Well, I have a 1942 WW2 centrifical starter with a hand crank mounted that will blow you away if I ever get it done. The series 9 has a starter pad that takes a starter the drives off the face of the gear not the edge and was used on old radial engines. I had a PT 23 with a 220 cont that had a starter like this anad what a blast. I'm just trying to relive the old days. Ken Conrad in cool Iowa________________________________________________________________________________